The answer is B. "Estudiante" is not correct because it is the singular form for student, while the rest of the sentence is in plural. The correct form of the sentence is "Las estudiantes son inteligentes".
Answer:
the north got a lot more factories and started to produce a lot of goods that were needed all over.
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That is because Californian state law allows sales of Medical Marijuana, and they can't prove that the sales were illegal and that there were problematic things included because it's legal in the state.